op VI-4 p.420 Hinc i...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/26451 <http://www.w3.org/nl/lemon/frac#Attestation>
op VI-4 p.420 Hinc i...
op VI-4 p.420 Hinc in progressione Arithmetica duae quaelibet eodem intervallo distantes sunt aequidifferentes, et contra aequidifferentes sunt aequidistantes.